[求助]og_62

aliciahh622

Which of the following best completes the passage below?

At a recent conference on enviromental threats to the North Sea,most participating countries favored uniform controls on the quality of effluents, whether or not specific enviromental damage could be attributed to a particular source of effluent. what must, of course, be shown, in order to avoid excessively restrictive controls, is that______.

B. any substance to be made subject to controls can actually cause enviromental damage.

E. enviromental damage already inflicted on the North Sea is reversible.

i chose E, but the answer is B, i have read the explanations already, but still dont get why the asnwer is B.

could some nn help me out?

thx.

lismiles

在最近一次关于北海环境污染的会议上，多数参会的国家支持对污染物进行控制，是否由于某一具体的污染物对环境污染产生了影响，为了避免过于严格的控制，以下哪个是一定要说明的？

B将要被限制的物质确实对环境产生了损害

E没有针对文中的“in order to avoid excessively restrictive controls”和“a particular source of effluent”做出回应。